. 2019 Oct 7;8(10):e13557. doi: 10.2196/13557
©Yousef S Khader, Lucie Laflamme, Daniela Schmid, Soha El-Halabi, Mohammad Abu Khdair, Mathilde Sengoelge, Salla Atkins, Manal Tahtamouni, Tarik Derrough, Ziad El-Khatib. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 07.10.2019
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